摘要:
The present invention relates to polymeric compositions that are biodegradable and that can be melt processed into various forms, including films, fibers, and nonwovens. The compositions include compatible or semicompatible blends of biodegradable polymers and have physical and thermomechanical integrity. Films formed from preferred polymeric compositions are suitable for use as backsheets in disposable absorbent articles. In a preferred embodiment, the polymeric composition includes a polyhydroxyalkanoate and at least one other biodegradable polymer selected from aliphatic polyester-based polyurethanes, a polylactide, polycaprolactone, or a mixture of two or more of these polymers. Where the second polymer is polycaprolactone, the composition preferably also includes a third polymer for enhancing the melt processability of the composition.
摘要:
The present invention relates to an apertured web formed from a polymeric film having permanent hydrophilicity which is suitable for use as a topsheet in an absorbent article. One embodiment of the present invention is a multi-layer polymeric film having a first layer, a second layer, and at least one intermediate layer between the first and second layers, where one of the first or second layers is a block copolymer of a polyether and another polymer and the other layer is a hydrophobic layer as defined herein. Methods of producing such webs are also disclosed. The present invention also pertains to absorbent articles which preferably include a topsheet in accordance with the present invention, a backsheet secured to the topsheet, and an absorbent core positioned between the topsheet and the backsheet.
摘要:
The strength of lignocellulosic materials is improved by treating them with water-soluble strengthening agents containing sulfonic units, and rendering these agents water-insoluble by reacting them with compounds containing epoxide rings and quaternary ammonium groups. Thus, a substantial reduction or elimination of the bleeding of said strengthening agents from the lignocellulosic materials when touched with wet hands or contacted under humid conditions is achieved.
摘要:
The present invention relates to partially impregnated lignocellulosic materials. When impregnated with strengthening agents, the partially impregnated materials exhibit increased overall strength while maintaining sufficient adhesive bondability of the surface opposite the impregnation surface.
摘要:
Disclosed herein are degradable sachets useful for enclosing a consumer product, such as, for example, shampoo, conditioner, soap, toothpaste, bar soap, and detergent. The sachets of the invention have a moisture vapor transmission rate (MVTR) of less than about ten grams per square meter per day (g/m2/day) at 37° C. and 90% relative humidity (RH), and can disintegrate into pieces sufficiently small to pass through a one millimeter sieve, within two years after first and continuous exposure to water and microorganisms.
摘要翻译:本文公开了可用于包封消费品的可降解小袋,例如洗发剂,护发素,肥皂,牙膏,酒吧皂和洗涤剂。 本发明的香囊具有在37℃和90%相对湿度(RH)下小于约10克/平方米/天(g / m 2 /天)的湿气透过率(MVTR),并且可以分解成 在第一次连续暴露于水和微生物后的两年内,足够小的片穿过一毫米筛。
摘要:
A method of surface treating particulate materials with electromagnetic radiation that is carried out with a so-called roll reactor comprising a rotating roll and an irradiation source. Radical former molecules can be applied on the surface of superabsorbent polymer particles, which are fed onto the surface of the roll and irradiated while moved with the rotating roll. The irradiation source is provided such that the radiation is able to reach at least part of the particulate material that has been fed onto the surface of the roll.
摘要:
The present invention provides a process comprising the steps of (a) applying less than about 0.1 grams per square meter (gsm) of a release agent to a transfer surface, wherein the release agent is selected such that a test sample of the release agent having a concentration at or above its critical surface tension concentration, has a surface tension of less than about 50 dyne/cm or forms a contact angle with the material of the transfer surface of less than about 120°; (b) applying an adhesive to the transfer surface; and (c) transferring the adhesive from the transfer surface to a material web. Preferred embodiments are provided where the transfer surface is metals, polymers, elastomers, ceramics, wood, or combinations thereof and the release agent has the formula: X—CF2O—(C2F4O)p—(CF2O)q—CF2—X. Additional embodiments are provided to continuous and intermittent processes.
摘要:
Disclosed herein are flexible barrier packages composed of materials that are substantially free of virgin, petroleum-based compounds. The flexible barrier packages contain a sealant that has a biobased content of at least about 85%. The sealant is laminated to an outer substrate that has a biobased content of at least about 95% via a tie layer that can further include an extruded substrate. The extruded substrate has a biobased content of at least about 85%. Ink optionally can be deposited on either side of the outer substrate, and the exterior surface of the outer substrate can further include a lacquer. A barrier material layer can be deposited or laminated between the first tie layer and the outer substrate. The flexible barrier packages of the invention are useful for enclosing a consumer product, such as, for example, food, drink, wipes, shampoo, conditioner, skin lotion, shave lotion, liquid soap, bar soap, toothpaste, and detergent.
摘要:
Articles for applying color on a surface comprise a sheet of dry color component and an adhesive on one surface of the sheet of dry color component. The article further includes a releasable liner, and the sheet of dry color component is arranged between the releasable liner and the adhesive. Methods for providing a substantially permanent color effect on an architectural surface comprise delivering such an article to the architectural surface.
摘要:
Filters and filter materials for removing microorganisms from a fluid are provided along with processes for using the same. The filters include a housing having an inlet and an outlet and a filter material disposed within the housing, wherein the filter material is formed at least in part from a plurality of filter particles having an activated coating with a lignosulfonate.